Extinguishing apparatus



March 5, 1957 A. PUJES 2,783,846

EXTINGUISHING APPARATUS Filed July 12, 1954 INVENToR H'DoLPHE PUTES United States Patent C) 2,783,846 EXTINGUISHENG APPARATUS Adolphe Iujes, Marseille, France Application July 12, 1954, Serifl No. 442,880

Claims priority, application France July 11, 1953 2 Claims. (Cl. 169-32) The object of the invention consists in the provision of an extinguishing apparatus adapted to work continuously and having an arrangement permitting re-charging of the apparatus during use and in minimum time and Without disassembly.

It is characterised by means of features which may be used together or separately and more particularly by the arrangement of a double conduit giving the possibility of directly'refilling the receptacles provided for the reception of the acids or re-acting agents and basic products.

In the accompanying drawings which are given by way of example without limitation there is shown a form of execution of the invention. The single figure shows the apparatus in the assembled condition in longitudinal section.

The extinguisher is constituted by container 1 forming a reservoir space 2 adapted to receive the basic product. This reservoir space is furnished at its upper part with a conduit 3 having a filling funnel 4 and a shut-ofi gate valve 5. The ejection nozzle 6 is disposed in the container 1 at the usual position. In the interior of the first reservoir space 2 and concentrically therein is disposed a second receptacle 7 adapted to receive the charge of acid or reactant. In its upper part there is a seating 8 having a clapper valve 9 operable by means of hand wheel provided exteriorly of the apparatus. The chamber 10 is provided with an opening 11 providing communication between the reservoir 7 and the receptacle 2. This chamber is also provided with a conduit 12 with a filling funnel 14 and gate valve 13. The two conduits 3 and 12 are disposed in such a manner as to permit convenient and rapid refilling. A valve 15 is provided for escape of air and residual foam to permit complete refilling.

The advantage and functioning of the apparatus will be apparent.

In case of disaster the extinguisher is utilised following the usual procedure by opening the clapper valve 9 and inverting the apparatus.

The mixture of the acids or reactants and the basic product is efiected through the opening 11 providing communication between the reservoirs 2 and 7. The foam-like emulsion produced is projected through the nozzle 6 in the required direction.

When the charge is depleted the valves 5 and 13 are opened and the appropriate materials are filled into the collectors 4 and 14. During this operation the valve 15 2,783,846 i atented Mar. 5, 1957 has been opened to permit evacuation of the air and of the residual foam.

After closing the valves 5, 13 and 15 without other operation than the usual inversion, a new emission of extinguishing product is obtainable. Thus in the minimum time and without taking the apparatus to pieces one may use again the same apparatus with a very complete efficacy. Simplicity of the various parts, and their robustness, assures an operation which cannot become out of order giving in all circumstances a maximum effeet in use.

The form, dimensions and arrangements of the difierent parts as well as the material used for their manufacture may be varied without thereby changing the general conception of the invention.

I claim:

1. A fire extinguisher comprising an outer chamber having an outlet nozzle and serving to contain a first liquid reagent, an inner chamber for a second reagent disposed within the outer chamber and protruding from that end of the outer chamber which is uppermost when the extinguisher is stood in upright rest position, said inner chamber having adjacent its protruding end an opening forming a communication between the inner and outer chambers, a stop valve arranged in the inner chamber adjacent its protruding end and adapted to seal off the opening from the remainder of the inner chamber so as to prevent unintentional mixture of the reagents, a first valve controlled inlet on the inner chamber where said inner chamber protrudes from the outer chamber, for re-charging of the inner chamber without removal from the outer chamber, and a second valve controlled inlet on the outer chamber.

2. A fire extinguisher comprising an outer chamber having an outlet nozzle and serving to contain a first liquid reagent, an exhaust valve on said outer chamber for outlet of residual liquid and gases during re-charging of the extinguisher, an inner chamber for a second reagent disposed within the outer chamber and protruding from that end of the outer chamber which is uppermost when the extinguisher is stood in upright rest position, said inner chamber having adjacent its protruding end an opening forming a communication between the inner and outer chambers, a stop valve arranged in the inner V chamber adjacent its protruding end and adapted to seal off the opening from the remainder of the inner chamber so as to prevent unintentional mixture of the reagents, a first valve controlled inlet on the inner chamber where said inner chamber protrudes from the outer chamber, for re-charging of the inner chamber without removal from the outer chamber, and a second valve controlled inlet on the outer chamber.

References Cited in the file of this patent UNITED STATES PATENTS 94,157 Wheeler Aug. 24, 1869 119,638 Nichols Oct. 3, 1871 139,906 McAvoy June 17, 1873 140,744 Tibbets July 8, 1873 141,825 Steiner Aug. 12, 1873 1,810,668 Leipold June 16, 1931 2,530,092 Smye Aug. 14, 1950 

